For many people, Catholicism is a symbol of nationality even though they may not attend mass or participate in other religious activities or ceremonies. Most young people are baptized, and most marriages are conducted in a church. Other religions include Eastern or Serbian Orthodox, Islam, Judaism, and Protestantism. Since the war, there has been a more visible presence of Protestant missionaries, including members of the Church of the Latter Day Saints and Jehovah's Witness. There is some interest in Eastern religions, such as Buddhism, among young adults.

The citizens of France have a constitutional right of freedom to practice any religion that interests them. Though the early history of France depicts a strong compulsion of practicing Christianity as the religion of state, in modern France, all such regulations have been abolished, making France a truly secular nation.

As with most European countries, Ukrainians were originally a pagan nation of idol worshippers. In 988 AD, Prince Vladimir the Great of Kiev accepted Orthodox Christianity and brought the entire country under the influence of the Byzantine Empire. The period was characterized by mass baptisms, when many of the Prince’s subjects converted to Christianity. Despite changes over the past 1000 years, Ukrainian Orthodox Christianity remains the main religion of Ukraine today, with some 70% of Ukrainians still claiming to belong to this faith. However, there are a number of other religions in Ukraine.

Romania is a secular state, and it has no state religion. However, an overwhelming majority of the country's citizens are Christian. 86.7% of the country's population identified as Eastern Orthodox in the 2002 census (see also: History of Christianity in Romania).

Islam is followed by about 99 percent of Comorians, almost all of whom are Sunni Muslims. Fewer than 400 citizens—approximately 1 percent of the population—are Christian, all of whom reportedly converted to Christianity within the last half of the 1990s. Small groups of foreigners are Hindus or Christians.

The Church of Tuvalu, (Te Ekalesia Kelisiano Tuvalu) has historic ties to the Congregational Church and other churches in Samoa, and has the largest number of followers. All nine island groups have traditional chiefs who are members of the Church of Tuvalu. Most followers of other religions or denominations are found in Funafuti, the capital, with the exception of the relatively large proportion of followers of the Bah Faith on Nanumea Island. Missionaries are present and operate freely.

The king and the majority of the royal family are members of the Free Wesleyan Church (Methodist) which claims some 40,000 adherents in the country. There are four other Methodist denominations in the country. The Roman Catholic Church and The Church of Jesus Christ of Latter-day Saints each have a strong presence in the country as well. Tonga also has members of the Seventh-day Adventist Church, Anglicans, adherents of the Bah Faith, Hinduism, Buddhism and Muslims.